pAmCyan-N1 vector (V011887)

Price Information

Two tubes of lyophilized plasmid will be delivered, each tube is about 5µg.

Basic Vector Information

pAmCyan1-N1 encodes a human codon-optimized variant of wild-type Anemonia majano cyan fluorescent protein, AmCyan1 (1). The AmCyan1 coding sequence contains a series of silent base-pair changes, which correspond to human codon-usage preferences, for optimal expression in mammalian cells (2). Additionally, an upstream sequence—located just 5' to the AmCyan1 start codon—has been converted to a Kozak consensus translation initiation site (3) to further increase the translation efficiency in eukaryotic cells. Two amino acid substitutions (Asn-34 to Ser; Lys-68 to Met) have been made to enhance the emission characteristics of AmCyan1 (excitation maximum = 458 nm; emission maximum = 489 nm).The multiple cloning site (MCS) in pAmCyan1-N1 is positioned between the immediate-early promoter of CMV (PCMV IE) and the AmCyan1 coding sequence. Thus, genes cloned into the MCS will be expressed as fusions to the N-terminus of AmCyan1 if they are in the same reading frame as AmCyan1 and there are no intervening stop codons. The SV40 polyadenylation signals (SV40 polyA) downstream of the AmCyan1 gene direct proper processing of the 3' end of AmCyan1 mRNA.The vector backbone contains an SV40 origin (SV40 ori) for replication in mammalian cells that express the SV40 T antigen, a pUC origin of replication (pUC ori) for propagation in E. coli, and an f1 origin (f1 ori) for single-stranded DNA production. In addition, a neomycin-resistance cassette— consisting of the SV40 early promoter (PSV40e), the neomycin/kanamycin resistance gene of Tn5 (Neor/Kanr), and polyadenylation signals from the Herpes simplex virus thymidine kinase (HSV TK poly A) gene—allows stably transfected eukaryotic cells to be selected using G418 (4). A bacterial promoter (P) upstream of this cassette drives expression of the Neor/ Kanr gene in E. coli host cells, which can be selected with kanamycin.Fusions to the N terminus of AmCyan1 retain the fluorescent properties of the native protein allowing the localization of the fusion protein in vivo . The target gene should be cloned into pAmCyan1-N1 so that it is in frame with the AmCyan1 coding sequence, with no intervening, in-frame stop codons. The inserted gene should include the initiating ATG codon. The recombinant pAmCyan1-N1 vector can be transfected into mammalian cells using any standard transfection method. If required, stable transformants can be selected using G418 (available from Clontech; Cat. Nos. 631307 & 631308). We recommend selecting mammalian cell cultures in 500–1,300 μg/ml G418, depending on the cell line. Be sure to establish a kill curve for each cell line and each lot of G418 to determine the optimal selection concentration. Unmodified (i.e., non-recombinant) pAmCyan1-N1 can also be used simply to express AmCyan1 in a cell line of interest (e.g., as a transfection marker).

pAmCyan-N1 vector Map

Plasmid Protocol

1. Centrifuge at 5,000×g for 5 min.

2. Carefully open the tube and add 20 μl of sterile water to dissolve the DNA.

3. Close the tube and incubate for 10 minutes at room temperature.

4. Briefly vortex the tube and then do a quick spin to concentrate the liquid at the bottom. Speed is less than 5000×g.

5. Store the plasmid at -20 ℃.

6. The concentration of plasmid re-measurement sometimes differs from the nominal value, which may be due to the position of the lyophilized plasmid in the tube, the efficiency of the re-dissolution, the measurement bias, and adsorption on the wall of the tube, therefore, it is recommended to transform and extract the plasmid before using it

General Plasmid Transform Protocol

1. Take one 100μl of the competent cells and thaw it on ice for 10min, add 2μl of plasmid, then ice bath for 30min, then heat-shock it at 42℃ for 60s, do not stir, and then ice bath for 2min.

2. Add 900μl of LB liquid medium without antibiotics, and incubate at 37℃ for 45min (30℃ for 1-1.5 hours) with 180rpm shaking.

3. Centrifuge at 6000rpm for 5min, leave only 100μl of supernatant to resuspend the bacterial precipitate and spread it onto the target plasmid-resistant LB plate.

4. Invert the plate and incubate at 37℃ for 14h, or at 30℃ for 20h.

5. Pick a single colony into LB liquid medium, add the corresponding antibiotics, incubate at 220rpm for 14h, and extract the plasmid according to the experimental needs and the instructions of the plasmid extraction kit.

pAmCyan-N1 vector Sequence

LOCUS       40924_4419        4703 bp DNA     circular SYN 13-JAN-2022
DEFINITION  synthetic circular DNA.
ACCESSION   .
VERSION     .
KEYWORDS    .
SOURCE      synthetic DNA construct
  ORGANISM  synthetic DNA construct
REFERENCE   1  (bases 1 to 4703)
  TITLE     Direct Submission
REFERENCE   2  (bases 1 to 4703)
  AUTHORS   .
  TITLE     Direct Submission
COMMENT     SGRef: number: 1; type: "Journal Article"
FEATURES             Location/Qualifiers
     source          1..4703
                     /mol_type="other DNA"
                     /organism="synthetic DNA construct"
     enhancer        61..364
                     /label=CMV enhancer
                     /note="human cytomegalovirus immediate early enhancer"
     promoter        365..568
                     /label=CMV promoter
                     /note="human cytomegalovirus (CMV) immediate early
                     promoter"
     misc_feature    591..671
                     /label=MCS
                     /note="multiple cloning site"
     CDS             679..1365
                     /codon_start=1
                     /label=AmCyan1
                     /note="Anemonia majano cyan fluorescent protein"
                     /translation="MALSNKFIGDDMKMTYHMDGCVNGHYFTVKGEGSGKPYEGTQTST
                     FKVTMANGGPLAFSFDILSTVFMYGNRCFTAYPTSMPDYFKQAFPDGMSYERTFTYEDG
                     GVATASWEISLKGNCFEHKSTFHGVNFPADGPVMAKKTTGWDPSFEKMTVCDGILKGDV
                     TAFLMLQGGGNYRCQFHTSYKTKKPVTMPPNHVVEHRIARTDLDKGGNSVQLTEHAVAH
                     ITSVVPF"
     polyA_signal    1491..1612
                     /label=SV40 poly(A) signal
                     /note="SV40 polyadenylation signal"
     rep_origin      complement(1619..2074)
                     /direction=LEFT
                     /label=f1 ori
                     /note="f1 bacteriophage origin of replication; arrow
                     indicates direction of (+) strand synthesis"
     promoter        2101..2205
                     /label=AmpR promoter
     promoter        2207..2564
                     /label=SV40 promoter
                     /note="SV40 enhancer and early promoter"
     CDS             2599..3390
                     /codon_start=1
                     /label=NeoR/KanR
                     /note="aminoglycoside phosphotransferase"
                     /translation="MIEQDGLHAGSPAAWVERLFGYDWAQQTIGCSDAAVFRLSAQGRP
                     VLFVKTDLSGALNELQDEAARLSWLATTGVPCAAVLDVVTEAGRDWLLLGEVPGQDLLS
                     SHLAPAEKVSIMADAMRRLHTLDPATCPFDHQAKHRIERARTRMEAGLVDQDDLDEEHQ
                     GLAPAELFARLKASMPDGEDLVVTHGDACLPNIMVENGRFSGFIDCGRLGVADRYQDIA
                     LATRDIAEELGGEWADRFLVLYGIAAPDSQRIAFYRLLDEFF"
     polyA_signal    3625..3672
                     /label=HSV TK poly(A) signal
                     /note="herpes simplex virus thymidine kinase
                     polyadenylation signal (Cole and Stacy, 1985)"
     rep_origin      4001..4589
                     /direction=RIGHT
                     /label=ori
                     /note="high-copy-number ColE1/pMB1/pBR322/pUC origin of 
                     replication"